Probably caused by too much lactic acid. Add one campden tablet per gallon of liquid and stir vigorously.

Too Cloudy

Probably
caused by over-heating. Move the liquid to a cool dry place for 2-3
weeks to see if it clears on its own. If not, either add finings (call
for guidance on the type and the quantity) or add some good wine of the
same variety to the mix.